Low speed automatic cancellation

ACC is not functional at vehicle speeds below 16 mph (26 km/h). Once the vehicle speed drops below 16 mph (26 km/h), an audible alarm will sound and the automatic braking will be released.
See also:
Special Operating Conditions
If you operate your vehicle primarily in any of the following conditions,
you need to perform additional maintenance as indicated. If you
occasionally operate your vehicle under any of these condi ...
Global open windows
Press and hold to begin opening
the two front windows and venting
the panoramic roof (if equipped).
• The control can then be released
and the windows and panoramic
roof will complete the ...
Under the Hood
Lincoln’s 5.4-liter V-8 engine develops 300 horsepower and 355 pounds-feet of
torque, and it mates with a four-speed-automatic transmission. The Navigator is
rated as an Ultra Low Emissions Vehicl ...
